Value Collection 314490BR Heavy Hex Nut 1-1/2-6 Unc

Product Description

The VALUE COLLECTION 314490BR is a heavy hex nut threaded to a 1-1/2-6 UNC specification, manufactured from A194 Grade 2H steel with a bright uncoated finish. This nut is designed for high-strength bolting applications where structural integrity and dimensional consistency are critical. The heavy hex profile provides a larger bearing surface and greater wrench engagement compared to standard hex geometry. With a hardness range of 24-35 HRC, this nut meets the mechanical property requirements of ASME B18.2.2 and ASME B1.1. It is installed by industrial maintenance technicians, pipefitters, millwrights, and structural ironworkers working in heavy-duty fastening assemblies.

This heavy hex nut is suited for use in pressure vessel flange connections, structural steel assemblies, pipeline flanges, and other heavy industrial applications where A194 Grade 2H fasteners are specified by engineering drawings or applicable codes. The 2B thread fit class allows for reliable engagement with standard UNC bolts and studs. Its bright uncoated surface is appropriate for dry indoor service or applications where a field-applied coating will be used after assembly.

Key Features

• A194 Grade 2H steel construction meets ASME B18.2.2 and ASME B1.1 dimensional standards
• 1-1/2-6 UNC right-hand thread with 2B fit class for consistent engagement
• Heavy hex profile with 2-3/8 inches across flats for increased wrench surface
• Hardness rated 24-35 HRC for high-strength bolting service
• Bright uncoated finish suitable for field coating or dry service environments

Compatibility

Designed for use with 1-1/2-6 UNC threaded bolts and studs in heavy industrial, structural, and pressure vessel flange assemblies where A194 Grade 2H heavy hex nuts are specified.

Installation Notes

Installation should be performed by qualified pipefitters, millwrights, or structural ironworkers in accordance with applicable ASME, AISC, or OSHA standards. Verify bolt and stud thread class compatibility before assembly to ensure proper 2B fit engagement. Do not impact-drive heavy hex nuts onto hardened studs without confirming thread condition. Always follow torque specifications provided by the equipment manufacturer or applicable engineering drawings.